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logging: add SWO syst backend support

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add SWO syst backend support.

Fixes: #19841.

Signed-off-by: Wentong Wu <wentong.wu@intel.com>
This commit is contained in:
Wentong Wu 2019-10-29 05:56:10 +08:00 • committed by Andrew Boie
commit 84809dbccf
2 changed files with 18 additions and 3 deletions
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6
subsys/logging/Kconfig
View file

@ -312,6 +312,12 @@ config LOG_BACKEND_SWO_FREQ_HZ
reset. To ensure flawless operation the frequency configured here and
by the SWO viewer program has to match.
config LOG_BACKEND_SWO_SYST_ENABLE
bool "Enable SWO syst backend"
depends on LOG_MIPI_SYST_ENABLE
help
When enabled backend is using SWO to output syst format logs.
endif # LOG_BACKEND_SWO
config LOG_BACKEND_RTT

15
subsys/logging/log_backend_swo.c
View file

@ -63,7 +63,10 @@ LOG_OUTPUT_DEFINE(log_output, char_out, buf, sizeof(buf));
static void log_backend_swo_put(const struct log_backend *const backend,
struct log_msg *msg)
{
log_backend_std_put(&log_output, 0, msg);
u32_t flag = IS_ENABLED(CONFIG_LOG_BACKEND_SWO_SYST_ENABLE) ?
LOG_OUTPUT_FLAG_FORMAT_SYST : 0;
log_backend_std_put(&log_output, flag, msg);
}
static void log_backend_swo_init(void)
@ -107,7 +110,10 @@ static void log_backend_swo_sync_string(const struct log_backend *const backend,
struct log_msg_ids src_level, u32_t timestamp,
const char *fmt, va_list ap)
{
log_backend_std_sync_string(&log_output, 0, src_level,
u32_t flag = IS_ENABLED(CONFIG_LOG_BACKEND_SWO_SYST_ENABLE) ?
LOG_OUTPUT_FLAG_FORMAT_SYST : 0;
log_backend_std_sync_string(&log_output, flag, src_level,
timestamp, fmt, ap);
}
@ -116,7 +122,10 @@ static void log_backend_swo_sync_hexdump(
struct log_msg_ids src_level, u32_t timestamp,
const char *metadata, const u8_t *data, u32_t length)
{
log_backend_std_sync_hexdump(&log_output, 0, src_level,
u32_t flag = IS_ENABLED(CONFIG_LOG_BACKEND_SWO_SYST_ENABLE) ?
LOG_OUTPUT_FLAG_FORMAT_SYST : 0;
log_backend_std_sync_hexdump(&log_output, flag, src_level,
timestamp, metadata, data, length);
}